Give the difference between multiprogramming and multiprocessing.
A multiprocessing system is a computer hardware configuration which contains more than one independent processing unit. Multiprocessing, this term is generally utilized to refer to large computer hardware complexes determined in main applications of scientific or commercial. The multiprocessor system is characterized through-increased system throughput and application speedup-parallel processing. The major feature of such architecture is to give high speed at low cost with comparison to uniprocessor.
A multiprogramming operating system: It is system which allows more than one active user program or part of user program to be stored in main memory concurrently. Multi programmed operating systems are fairly complicated. All the jobs which enter the system are maintained in the job pool. This pool includes all processes residing upon mass storage awaiting allocation of main memory. If some jobs are set to be brought in memory, and there is not sufficient room for them, so the system should choose between them. A multiprogramming system is a time-sharing system.